"I'm really into mechanical calculators and also security. A mechanical cipher machine would be really cool to add to the collection." Then I saw the going rates for vintage WWII cipher machines...

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@kyle
I have really enjoyed the mechanical calculators that you have been posting also.

@jlcrawf There's more to come! I'm going to feature a new one weekly, spaced out so as not to deluge my timeline all at once.

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